CN100387412C - Method for making heat insulation board by recovery and regeneration of waste hard polyurethane foam - Google Patents
Method for making heat insulation board by recovery and regeneration of waste hard polyurethane foam Download PDFInfo
- Publication number
- CN100387412C CN100387412C CNB2004100654952A CN200410065495A CN100387412C CN 100387412 C CN100387412 C CN 100387412C CN B2004100654952 A CNB2004100654952 A CN B2004100654952A CN 200410065495 A CN200410065495 A CN 200410065495A CN 100387412 C CN100387412 C CN 100387412C
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- CN
- China
- Prior art keywords
- polyurethane foam
- regeneration
- foam
- warming plate
- hard polyurethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Building Environments (AREA)
Abstract
The present invention discloses a method for regenerating and recycling waste rigid polyurethane foam plastics to manufacture insulation boards. The method is characterized in that after the waste rigid polyurethane foam plastics is coarsely crushed, an adhesive and water are added into the waste rigid polyurethane foam plastics; the waste rigid polyurethane foam plastics, the adhesive and the water are stirred and poured into a mould; after certain pressure is applied and kept at certain temperature for certain time, the mould is released to manufacture the insulation boards. The method has the advantages of simple manufacturing process, low cost favorable environmental protection, etc.
Description
Technical field
The present invention relates to the method that waste hard polyurethane foam is recycled, particularly polyurethane foam plastics regeneration is made a kind of method that reclaims and utilize of warming plate.
Background technology
At present, in producing RPUF product process, can produce the tailing of some, in addition, refrigerator, refrigerator scrap disassemble after, also produce many RPUFs, now, usually all these plastics arbitrarily abandon, landfill or destroy by fire, its maximum shortcoming is to occupy farmland, river course, and, also can cause a large amount of wastes of polyurethane material resource because of burning causes very serious atmosphere pollution, also there is not good solution at present.
Consult relevant background technology by retrieval, reclaim the waste polyurethane foam material and mainly contain above four kinds of recovery methods such as physical method, chemical method, energy recovery and burying method.And chemical method energy recovery and burying method cause secondary environmental pollution and reason such as uneconomical because of meeting, so use seldom in producing, the most promising is that physical method reclaims.During physical method reclaims especially with molding bonded for being worthy to be popularized most, but existing molding bonded recovery method also exists processing cost higher, regeneration plate heat-insulating property problem of unstable, therefore, exploitation a kind of significantly reduce cost and novel technique that the plate heat-insulating property of regenerating is guaranteed necessary.
Summary of the invention
The purpose of this invention is to provide a kind of waste hard polyurethane foam and recycle the method that warming plate is made in regeneration, this method not only technology is simple, reasonable, and comprehensive utilization of resources rate height, and three-waste free discharge are of value to environmental protection.
The present invention realizes with following technical scheme: a kind of waste hard polyurethane foam is recycled the method for regeneration warming plate, and its technological process is as follows:
Adhesive and water
↓
Useless rigid polyurethane foam plastics → pulverizing → foam beads → apotheca → stir → be weighed into mould → temperature control pressurization → sheet material demoulding
Wherein pulverize: be meant waste hard polyurethane foam is dropped in the disintegrating apparatus, be ground into foam beads; The size of foam beads is: 1～5cm.
Stir: be under the situation that adds adhesive and water, to carry out; The adhesive that adds is polyurethane adhesive and urea-formaldehyde glue; The weight ratio of it and foam beads is 1: 5, and the water of adding and the weight ratio of foam beads are 1: 37.
Temperature control pressurization: be meant under the temperature and pressure condition of needs, impel adhesive solidification and moulding between the foam beads.The control temperature is 50～80 degree, and the applied pressure benchmark is that the ratio with the foam beads volume under the normal shape and the volume of warming plate is 3.5: 1.
The sheet material demoulding: be meant and after temperature control pressurization keeps the regular hour, carry out; The time that keeps is with under operating temperature 50～80 degree situations, is 1～2 hour, is 5～8 hours under the normal temperature.
Its good effect is: the heat preservation plate material that utilizes said method to produce, but one-shot forming, also can make slab after, jagsaw, be cut into the sheet material of all size, can be directly used in the laminboard layer of construction wall, permanent or one off houses top, door, wall.Owing to adopted coarse crushing technology, particle size reaches 1～5cm, has kept the distinctive heat preservation and insulation of hard polyurethane ester material so as much as possible.Adopt the foam board good moldability of this method regeneration, vertical and horizontal cutting back foam surface is good, after testing, the cystosepiment compressive strength 〉=200kpa of regeneration, density is 130～145kg/m
3, thermal conductivity factor≤0.045W/ (mk).
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment 1
Take by weighing 50 kilograms disassemble the resulting RPUF of waste refrigerator after, the warming plate of regenerating according to the following steps:
1 with bulk foamed plastics input pulverizer, obtains being of a size of the coarse granule foamed plastics of 1～5cm;
2 place container with the coarse granule foamed plastics, add 4.5 kilograms of polyurethane adhesives and 5 kilograms of Powdered urea-formaldehyde glues after, fully stir, in the process that stirs, with the water of 12 kilograms of atomizers spray;
3 have adhesive and water with adding, and all pack in one long 1 meter, wide 1 meter, high 1.2 meters steel die through well-beaten coarse granule foamed plastics, be furnished with electrical heating wire around the mould, connect power supply, treat that mold surface temperature reaches 60 when spending, and can exert pressure the size of exerting pressure from top to bottom, to be that 3.5: 1 (height of this moment is 40cm) gets final product, kept pressurized state 1～2 hour with the foamed plastics volume of normality and the ratio of the warming plate volume after the pressure;
4 remove applied pressure, after the sheet material demoulding, can saw, cut, cut out, be cut into the heat preservation plate material of all size size shape, and this heat preservation plate material can be used for the battenboard on portable plate door, wall, top, has good heat insulation, deadening.
After testing, the foam density of this warming plate is 130kg/m
3, compressive strength 205kpa, thermal conductivity factor=0041w/ (m.k).
Claims (4)
1. waste hard polyurethane foam is recycled the method that warming plate is made in regeneration, and it is characterized in that: this method is carried out as follows successively:
(1) waste hard polyurethane foam is dropped into is ground into foam beads in the disintegrating machine;
(2) will add polyurethane or urine aldehyde glue and water in the gained foam beads, and fully stir;
(3) will add polyurethane or urine aldehyde glue and water also through the foam grain compound after stirring, in the pressing mold of packing into after weighing;
(4) keep temperature: 50 ℃～80 ℃; 1～2 hour time, the applied pressure benchmark is that the ratio with the foam beads volume under the normality and the volume of warming plate is 3.5: 1.
(5) make RPUF insulation slab, sheet material after the demoulding.
2. waste hard polyurethane foam according to claim 1 is recycled the method that warming plate is made in regeneration, it is characterized in that: in the pulverizer, pulverize to such an extent that the plastic grain degree is: 1cm～5cm.
3. waste hard polyurethane foam according to claim 1 is recycled the method that warming plate is made in regeneration, it is characterized in that: polyurethane adhesive is with urine aldehyde glue and add to such an extent that polyurethane foam particle weight ratio is 1: 5～6, and the water of adding and foam beads part by weight are: 1: 32～42.
4. waste hard polyurethane foam according to claim 1 is recycled the method that warming plate is made in regeneration, it is characterized in that: in the step of the sheet material demoulding, temperature is controlled at 50 degree～80 degree, and the retention time was at 1～2 hour; The normal temperature bottom knockout time is 5～8 hours; Warming plate volume ratio after foam beads volume and the compacting is 3.5: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100654952A CN100387412C (en) | 2004-12-03 | 2004-12-03 | Method for making heat insulation board by recovery and regeneration of waste hard polyurethane foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100654952A CN100387412C (en) | 2004-12-03 | 2004-12-03 | Method for making heat insulation board by recovery and regeneration of waste hard polyurethane foam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1631631A CN1631631A (en) | 2005-06-29 |
| CN100387412C true CN100387412C (en) | 2008-05-14 |
Family
ID=34846493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100654952A Expired - Fee Related CN100387412C (en) | 2004-12-03 | 2004-12-03 | Method for making heat insulation board by recovery and regeneration of waste hard polyurethane foam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100387412C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515638A (en) * | 2011-11-30 | 2012-06-27 | 镇江绿能环保科技有限公司 | Preparation method of polyurethane composite material for microalgae cultivation |
| CN102585137A (en) * | 2011-12-23 | 2012-07-18 | 山东东大一诺威聚氨酯有限公司 | Environmentally-friendly high-strength regenerated foam polyurethane adhesive, and preparation method and use method thereof |
| CN102601910B (en) * | 2012-03-01 | 2014-11-26 | 四川长虹电器股份有限公司 | Method for manufacturing heat-insulating plate by adopting hard polyurethane |
| CN102962938A (en) * | 2012-12-03 | 2013-03-13 | 南京红宝丽新材料有限公司 | Method for manufacturing composite thermal insulation board by utilizing rigid waste polyurethane foam and straws |
| CN103938743A (en) * | 2013-07-10 | 2014-07-23 | 王彦强 | Novel household garbage recycling method |
| CN103450581A (en) * | 2013-09-16 | 2013-12-18 | 内蒙古大学 | Method for preparing board from waste polyurethane foam and waste polystyrene foam |
| CN104140687B (en) * | 2014-07-28 | 2017-02-08 | 四川国能高科生物树脂有限公司 | Fireproof plate prepared from waste foam and preparing technology thereof |
| CN104494091A (en) * | 2014-10-24 | 2015-04-08 | 叶香雄 | Method for recovering fast food container to producing exterior wall warming plate |
| CN105196444A (en) * | 2015-09-21 | 2015-12-30 | 东港市华瑞彩钢有限公司 | Abandoned foam recovery system |
| CN107627524A (en) * | 2017-08-14 | 2018-01-26 | 江阴市安和祥保温材料有限公司 | PU is incubated the production technology of closely knit plate |
| CN112094496A (en) * | 2020-09-11 | 2020-12-18 | 顾连花 | Hard foam polyurethane insulation board and preparation process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4221070A1 (en) * | 1991-09-19 | 1993-12-23 | Hubertus Schmid | Recycling of waste plastics - to make boards, insulating materials, doors, etc. |
| DE4444532A1 (en) * | 1994-10-11 | 1999-02-11 | Hubertus Schmid | Waste recycling methodology specifying widely ranging material types and processing equipment |
-
2004
- 2004-12-03 CN CNB2004100654952A patent/CN100387412C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4221070A1 (en) * | 1991-09-19 | 1993-12-23 | Hubertus Schmid | Recycling of waste plastics - to make boards, insulating materials, doors, etc. |
| DE4444532A1 (en) * | 1994-10-11 | 1999-02-11 | Hubertus Schmid | Waste recycling methodology specifying widely ranging material types and processing equipment |
Non-Patent Citations (2)
| Title |
|---|
| 废旧聚氨酯材料的回收利用. 刘益军.中国聚氨酯工业协会第十次年会论文集2000. 2000 |
| 废旧聚氨酯材料的回收利用. 刘益军.中国聚氨酯工业协会第十次年会论文集2000. 2000 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1631631A (en) | 2005-06-29 |
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Granted publication date: 20080514 Termination date: 20100104 |